Paper-strip-controlling mechanism



Nav. 25, 1930. l v R. J. JAUcH 1,782,518V

PAPER STRIP CONTROLLING MECHANISM Filed April e. 1927 4 .sheets-sheet 1v I '5MM/La se .ser Anas/f cewrsn., Z E Z a i i ma 2 +l ATToRN Nov. 25, 1930. R. J. JAuH I 1,782,618

PPE STRIP CONTROLLING HECHANISH Filed April 6. 1927 4 sheets-sheet 2 V INVENTOR Nov. 25, 1930. R. J, JAUCH 1,782,618

PAPER STRIP CONTROLLI-NG Aulacunmu v Filed April e. 1927 4 sheets-sheet s l 0R mum/J a, M TORN Nv. k25, 1.930.

- R. J. `:AUCH 782,618

PAPER STRIP CONTROLLING MEGHANISM Filed April e. 1927 4 sneetsfsn'eet 4 INVENToR ma. ATTO Patented Nov. 245, 1930 BQBERT J'. JAUCH, 0F FORT WAYNE, INDIANA PAPER-STRIP-CONTROLLING MECHANISM Application illed April 6, 1927. Serial No. 181,408.

My invention relates to improvements in paper tube/making machines and particulary to a mechanism for holding, guiding, tensioning, gluing or moistening and positioning the paper strips in relation tothe mandrel onto which they are drawn in forming the tube. rllhe present invention is especially` applicable to paper tube making machines of the type set forth in my Patent No. 1,625,470

1o issued April 19, 1927.

One vobject of my invention is to provide means for ensuring a uniform tension on the paper strip asy it is drawn onto the mandrel,

no matter what the diameter of the strip roll` maintenance of a uniform tension on said4 l strip is desired.

Another object of my invention is yto pro-` '25 vide tensioning means readily removablel from the machine Without losing the tension setting. In setting up the machine foropveration and in replacing the strip when it becomes torn, such removal facilitates quick 3o threading of the paper.

Another object of my invention is to facilitate quick threading of the paper strips by making the shafts connected with the guiding, tensioning, gluing or moistening mechanism readily removable. i

Another object of my invention is to make the individual vtensioning elements laterally adjustable to provide for` different spacing of strips, in which case the lwidth of the strips 40 is increased or diminished.

. Another object of my invention is tomakeA 5o widths of paper-are used. y.

.strip from the other.

sioning ratchet and spring;

Another object of my invention is to make the main group of roll holders laterally adjustable as a unit so as to deliver the paper to the proper point on the mandrel when'the A angle at which the strips are delivered is changed. l

Another object of my invention is to make the gluing rolls adjustable toward and from the 'mandrel to insure the delivery of the strip 'onto the mandrel` with the glue at the 60 proper drying point. a

Another object of my invention is to provide means for lifting the wet strips clear of the gluing rolls when the machine is shut down.

Another object of my invention is to provide means for removing the excess moisture or excess gluefrom the gluing roll before the strip touchesv it.

Another object of my invention is to make it possible to raise the excess glue removing means clear of the rolls when the machine is shut down.

Another object of my invention is to provide means for changing the angle at which,

vthe paper is drawn onto the mandrel.

In the particular embodiment of my invenj tion selected for illustration is shown applied to a tube-making machine of the reciprocating mandrel type covered by my patent hereinbefore referred to," in which the mandrel rotateson the forward stroke but not when being retracted; the wet strips are drawn onto the mandrel from one side and the dry Figure 1, is a perspective from above and at the tail end of the machine ;-a square tube is being made;

Fig. 2, is a perspective from the Wet strip side', the tail end of the machine being broken away;

Fig. 3, a detail,` is an assemblyof the tensioning device; Fig. 4, a detail, is an end view pf the tensioning device assembly, parts bemg broken and the ratchet wheel in section; i

Fig. 5, a detail, is a perspective from above of one tensioning shoe;

Fig 6, a detail, is a side elevation `of the tenl Fig. 7 an enlarged detail, is an axial section through the friction disc, spider and shaft on the line 7-7 of Fig 2,

Fig 8, an enlarged detail, is a plan View of the dry roll holding mechanism,

Fig 9, an enlarged detail, is a section on the line 9--9' of Fig 8, the clamp screws being shown in full,

Fig. 10, an enlarged detail, is a section on the line 10-10 of Fig. 9, the clamp screw-being shown in full,

Fig. 11 is an elevation of the reservoir bracket with the. tension bar and attendant parts removed, exposing to view the guide spools and tension rolls, and

Fig. 12 is a diagrammatic drawing illustrating the proper vertical setting of the roll from which the papel' strip passes to the mandrel, for making the particular size and shape of tube shown; together with a rule for determining the roll height setting for all tubes.

Referring now to the drawings, T is the table to which the operative mechanism is secured and is supported by legs t. R is the means for reciprocating the mandrel M. S is the means for rotating the mandrel. VQ is the bearing for the mandrel. The motor P is used to drive the reciprocating and rotating mechanism through belt 1' and chain s respectively. 1 is Vthe Aironing and gripping mechanism illustrated and described in my pending appiation, Serial l 105,130, filed April 28th,

The means for holding the roll paper strip A, from which the dry strip is supplied to the tube as it is formed, consists of a supporting base a secured to the table T at the most con-l venaent point, which is approximately opposite the mandrel bearing Q. To the base (t 1s pivotally secured a way a1, which may be clamped to the base a by clamp bolts a3, a3, so

as to maintain the way in the position to which it' has been adjusted An angular bracket a5 is slidably adjustable on the way a1 and adapted to be clamped in the position to which 1t has been adjusted by means of a lock bolt a". The'bracket a5 carries a shaft a made long enough to permit of axial adjustment. and adapted to be secured in adjusted position by means of thumb screw a3.

The roll paper strip A is loosely. mounted on the shaft ons between the disc a3 and friction disc a, which latter is resiliently mounted 1n spider a1, which spider is held in position on the shaft a by thumb screw a. The

' -spider is provided with a counterbore a on its inner face, and is bored to receive a plurality of coil springs a1". The frictionl disc a, 1s placed in the counterbore a and projects beyond the inner surface of the spider, and is held in the counterbore by screws al?. This friction disc a9 puts a slight tension on the roll A suicient to keep the paper strip taut on the roll. It will be apparent that the position of the roll may be adjusted to and 4 from a thumb screw al.

the vertical Vportion of the bracket a3, as hereinbefore described.

A block a is. adjustably secured to the outer side of' the bracket a3 by means of a vertically positioned dove-tail guide a0, a0". This vblock a15 is held in the position to which it has been adjusted by means of a lock-bolt al which passes through a vertical slot a in the bracket a5.

A shaft L13 is secured to the block@15 and isadjustably held in position by means of On this shaft is mounted an idler roll a2 and this idler roll is adjustable axially of the shaft and adapted to be -held in adjusted position by means of a snap ring L31 adapted to seat in any one of a plurality of circumferential grooves L32 1n the shaft L13 or in any other convenient manner.

A shaft (L23 is securedin the block als, adj u'stable axially, and held in adjusted positlon by means of a. thumb-screw a. A guldespool a2 is mounted on the shaft L33 and 1s adjustable axially thereof, being held in adjusted position-by means of a snap rlng a2 in vany one of a .plurality of circumferential grooves a3" in the shaft (L33.

. A tension-block a28 is secured to the block a15 by vertically positioned dove-tail guides a3?, a3", and this tension block is adapted to be held in adjusted position by means of a lock-bolt L31 extending through the vertical slot a in the bracket a.

. A tension bracket L33 is adjustably secured to the tension block 123 by means of screws a33, L33 and slots a, a, so as to permit adjustment of the Vtension bracket toward and away from bracket a.

A tension shoe (L35 is pivoted by a pin a3 to the tension bracket a32 and is 'adapted to be pressed toward the idler roll a3 so as to bear upon the paper strip A, interposed between said shoe a35 and said idler roll a3", the degree of pressure being determined by the tension of a tension spring a", one end of which 1s secured to' a ratchet wheel a3B on shaft a and the -other end adapted to bear upon the topl of the shoe a3". The tension is maintained by the contact of a pivoted pawl a3 with the teeth of the ratchet wheel 13s. This permits of such adjustment of the spring tension as will ensure the pressure deslred on the strip of paper as it is drawn forward by the rotating mandrel between the idler roll a3 and the shoe a3". This pressure ensures a constant tensionon the paper stri Five rolls of paper in strip orm are supplied from the other side of the table T opposite the roll A. These rolls andthe paper strips from them are designated as B, C, D and E, and the remaining roll holder being shown without paper roll on it. All other mechanism for handling the roll paper strip F are omitted, and the remainin mechanisms adjusted acordinglye To the casing H all otally secured to the table T by lock-bolt g,

Bracket G has an arcuate slotg1 through a block g is secured ,G1 by dove-tail joint provided which extends lock-bolt g2, by means of which the bracket is further secured in position on' tbe table T when adjusted to thedesired position of angularity thereto. j An extension G1 of the bracket G is secured to bracket G by means of dove-tail joint g, 4 so that the bracket extension G1 is vertically adjustable by means of a screw g5.

to the bracket extension g", g8 and is adjustable to and from the table thereonl by means of screw y. Thisblock carries the weight of the housing H which is secured to reservoir K which in turn rests'on block g and lateral adjustment of the housing and reservoir is by means of dove-tail g1", g11, the same being effected by means of screw g1g.

A disc bs is extended at one side to form bosses through which pass shafts b4, 1241, the

' first being threaded through the disc so as to laterally adjust the same by rotation of said sh'aft by means of a hand-wheel b4?, the shat 54.1 acting merely as a support and A spider bm'hasfriction plate, counterbore, tension springs and screws in every way similar. to -those heretofore described for spider a1", Aand is adjustably secured to the shaft on which it is mounted by means of thumb-screw. Said shaft is a stud-bolt fixed to the disc bs.

` 721; threaded shafts 04, d, e

The rolls C, D, E and F have discs 08, da,

e and f3 respectively, similar in all respects to the disc bs; ,stud-bolt'shafts d, e6 and f94 respectivelyare shown and stud-bolt shafts for discs be and cf not shown are similar in all respects thereto, spiders c1", d1", e1? and f1 respectively, similar in all respects to the and f respectively, similar in all respects tothe b4", and rotatable by means of hand-wheels c, d, e*2 and fzrespectively, similar in all respects to Z242; and guide and bearings shafts are designated as b--e*1, c-f and d.

Anl idler roll d, mounted on shaft d, isV

provided to carry the roll paper strip D from the inside of the housing 'to as to clear the housing mechanism. A forked bracket 913 is fixed to the bracket extension G1 projecting outwardly therefrom, and carries on its outerend a readily removable shaft g14 upon which are mounted idler rolls 645, c45, d and c, The bracket gv13 is laterally adjustable and adapted to be fixed inthe position to which it has been set by means of a thumb-screw g1".

The housing H is secured to the reservoir K, by screws It and reservoir K holds the water if'gummed strips are being fed, or glue if the strips are not gummed.

A forked bracket la is pivoted to the reser`' grooves,

the outside soV drawn forward over them onto the mandrel.

The back side of the scraper k1, when the bracket and scraper are thrown into upright position, forms a rest which keeps the paper strips out of contact with the idler rolls Z246, c4, d and c when the machine is shut down and therefore prevent the paper strips from adhering to therolls which adherence would makeitdifiicult to resume operation.

Extending out from the back of the reservoir K- is a forked bracket 11:13. To the underside of this forked bracket is secured a readily removable shaft .7c3 upon which are loose guide-spools Z125, 025, d" and e. This shaft k? is held in position by means of knurled nuts 54, k* one on each side of the bracket On ythe upper side of the bracket k13,in suitable grooves, rests a shaft .705, upon which are mounted loose idler rolls b2", c2", d20 and 62. Near the ends of the forked bracket 1013 are downwardly and inwardly inclined adapted to receive a bar la each end in a tongue k1.

clamped in position by means of pivoted bolts lc", k7 and knurled nutsks, las which clamp upon the outer sides of the forked bracket kn.

Tension blocks 62s, 028, d and c are slidably adjustable on the bar k6 by means of a dove-tail ide k, k12 and may be secured inthe positions to which they have been ad-v justed by means of set-screws 631, c, d and e33 respectively. l

vTension shoes 535, c, d3 and e35 respec tively are similar in all respects to tension shoe a, and each has tension-spring, ratchetwheel andV ratchet-pawl similar in all respects to like parts described for exerting pressure on tension shoe 1135.

Many changes from the precise mechanism herein showny may bemade without departing from thespirit of my invention and I claim all forms readable on the claims.

The general operation of the machine is as described in my Patent, No. 1,625,470. The operation of the invention of this application is as follows: c

The outstanding feature of theY roll holder mechanism is the vertical adjustment. Unlike other machines that are built to wrap one size of tube having the last rolls over which the .paper passes permanently xed, my machine, by means of the vertical adjustment permits the operator to change from one size of mandrel to another in the shortest possible la on the contiguous innen` faces,

terminating at- This bar 7c is time and with no more effort than to adjust the height setting, by merely turning the handwheel provided for that purpose.

The drawing Fig. 12 shows a mandrel 5 l X 2, and illustrates just how the angle is consta'ntlychanging when the paper, as it is drawn on to it, strikes the extreme high point and follows down onto the low point. The rule for ascertaining the correct height setting is calculated to average the angle change, so that as the angle is increased at the one point it is proportionately decreased as it reaches the other point.

Everyday practice has proven that it is absolutely impossible to maintain the angle at which the paper has been set at the start nnless the height setting of the last roll over which the paper passes, is set to the correct height. If the rollers are set too high the edges of the paper strips will not abut but will gap; if set too low they Will overlap.

I claim as my invention, and desire to secure by Letters Patent of the United States:

1. In combination with a' paper tubemaking machine adapted to form paper tubes polygonal in cross section from strips of paper by drawing said strips onto a polygonal mandrel, said machine having such mandrel, an element from which such a strip is supplied to said mandrel and means for vertically adjusting said element.

2. vIn combination with a paper tube-making machine adapted to form tubes polygonal in cross section from stri ps of paper by drawing said strips onto a polygonal mandrel, said machine having such mandrel, an element from which such a strip is supplied to said mandrel, means for vertically adjusting said element, means for holding said element in '40 angular position to said mandrel, means for changing said angle and means for maintaining said element in whatever angular position it is set.

In testimony whereof I have hereunto set my hand.

ROBERT J. JAUCH. 

